About
Grason-Stadler Inc. (GSI) is a globally recognized leader in audiometric solutions, trusted by hearing healthcare professionals for more than 75 years. The company provides a complete test battery lineup encompassing audiometry, tympanometry, otoacoustic emissions (OAE), and evoked potentials — covering every stage from school screenings to advanced research facilities. GSI's product portfolio includes the AudioStar Pro and Pello audiometers, the TympStar Pro and Allegro tympanometers, the portable Corti OAE device, and the Audera Pro and Novus evoked potential systems. Their GSI 39 Auto Tymp offers a flexible five-version screening solution combining tympanometry, acoustic reflex measurement, and audiometry in one device. The AMTAS (Automated Audiometry) software platform integrates AMTAS Pro and AMTAS Flex into a unified solution with ambient noise monitoring, Video Otoscope support, and GSI Cloud integration — streamlining workflows and reducing manual testing burden. The AudioStar Pro and Pello also support the Audible Contrast Threshold (ACT) test, which predicts a patient's aided speech-in-noise ability to improve counseling outcomes. GSI supports customers through the full lifecycle of their devices — from consultation and installation to ongoing calibration and technical support — via a global network of distribution partners. Their solutions are ideal for audiologists, ENT specialists, school screening programs, hospitals, and audiology research institutions.
Key Features
- Complete Audiometric Test Battery: Covers audiometry, tympanometry, OAE, and evoked potentials in a single cohesive product ecosystem.
- AMTAS Automated Audiometry: Integrates AMTAS Pro and AMTAS Flex into one platform with GSI Cloud support, ambient noise monitoring, and Video Otoscope integration.
- Portable OAE Testing with GSI Corti: The Corti device offers fast, reliable diagnostic and screening OAE measurements for infants, children, and adults in a portable form factor.
- Audible Contrast Threshold (ACT) Test: Available on the AudioStar Pro and Pello, the ACT test predicts aided speech-in-noise performance and supports better patient counseling.
- Lifecycle Support & Distribution Network: GSI provides end-to-end support from installation to calibration through a global network of distribution partners.
Use Cases
- Conducting comprehensive hearing assessments in audiology clinics using audiometers and tympanometers
- Performing newborn and pediatric hearing screenings in hospitals and school programs with portable OAE devices
- Automating audiometric workflows in high-volume practices using AMTAS software and GSI Cloud integration
- Supporting ENT and audiology research with diagnostic evoked potential instruments like the Audera Pro and Novus
- Counseling hearing aid patients on speech-in-noise performance using the Audible Contrast Threshold (ACT) test
Pros
- 75+ Years of Industry Trust: A long-standing reputation in audiological equipment makes GSI a reliable choice for clinics and research institutions.
- Comprehensive Product Ecosystem: A single vendor covers the full audiometric test battery, reducing integration complexity for healthcare practices.
- Automated & Cloud-Integrated Workflows: AMTAS and GSI Cloud integration streamline testing workflows and reduce administrative overhead.
Cons
- Quote-Based Pricing Only: No transparent pricing is publicly listed; all purchases require direct engagement with GSI or a distribution partner.
- Hardware-Dependent Platform: Software capabilities are tied to specific GSI hardware models and licensing tiers, limiting flexibility.
Frequently Asked Questions
What types of audiology tests does GSI equipment support?
GSI instruments cover the full audiometric test battery including pure-tone audiometry, tympanometry, otoacoustic emissions (OAE), acoustic reflex testing, and auditory evoked potentials.
What is GSI AMTAS?
GSI AMTAS is an automated audiometry software platform that combines AMTAS Pro and AMTAS Flex into a single application. It supports ambient noise monitoring, GSI Video Otoscope integration, and cloud connectivity via GSI Cloud.
Is the GSI Corti suitable for infant hearing screenings?
Yes. The GSI Corti is a portable diagnostic and screening OAE device designed to test infants, children, and adults, making it ideal for newborn hearing screenings and pediatric audiology.
What is the Audible Contrast Threshold (ACT) test?
The ACT test, available on the AudioStar Pro and Pello, measures a patient's ability to understand speech in noisy environments and compares results to normative data to guide hearing aid counseling.
How do I get pricing or purchase GSI products?
GSI uses a request-a-quote model. You can contact them directly through their website or through their network of regional distribution partners for pricing and purchasing information.
